SF27 Posted June 28, 2019 Posted June 28, 2019 i am still getting around 280 fps with an sp110 spring in my ics m4 i have changed the cylinderhead fitted an ak long nozzle and new o ring in original piston. would it be worth getting a new piston and head to see better results or is there anything else i should be checking?
RR01 Posted June 28, 2019 Posted June 28, 2019 What FPS were you getting before you changed things? If it was better then some of the parts may not be optimal for your rifle, or could be causing an air leak. Check what you have before possibly spending money on parts you may not need.
SF27 Posted June 28, 2019 Author Posted June 28, 2019 Update: I have Teflon'd the bucking to rule that out and im getting around 330fps now Time to order a new one
SF27 Posted June 28, 2019 Author Posted June 28, 2019 Changing the subject The original hop up unit is plastic with the spring on top, the end is very slightly cracked i fear if i put to much pressure on it i will just break. been searching around online but cant seem to find if the new metal ics ones will fit with the spring being on the barrel ?
Asomodai Posted June 28, 2019 Posted June 28, 2019 15 minutes ago, SF27 said: Changing the subject The original hop up unit is plastic with the spring on top, the end is very slightly cracked i fear if i put to much pressure on it i will just break. been searching around online but cant seem to find if the new metal ics ones will fit with the spring being on the barrel ? I replaced the plastic one on my CXP15 with a metal one. Alternatively you can get one of the Maxxmodel ones.
SF27 Posted June 28, 2019 Author Posted June 28, 2019 1 minute ago, Asomodai said: I replaced the plastic one on my CXP15 with a metal one. Alternatively you can get one of the Maxxmodel ones. So it wouldnt matter about the spring being in different locations? I have this one https://www.fire-support.co.uk/product/ics-m4-hopup-chamber-unit will this one fit? https://www.fire-support.co.uk/product/ics-uk1-m4m16-metal-hopup-chamber-unit-set
Asomodai Posted June 28, 2019 Posted June 28, 2019 32 minutes ago, SF27 said: So it wouldnt matter about the spring being in different locations? I have this one https://www.fire-support.co.uk/product/ics-m4-hopup-chamber-unit will this one fit? https://www.fire-support.co.uk/product/ics-uk1-m4m16-metal-hopup-chamber-unit-set That's the one that was fitted into mine.
SF27 Posted June 29, 2019 Author Posted June 29, 2019 16 hours ago, Asomodai said: That's the one that was fitted into mine. What the metal or plastic one?
SF27 Posted July 11, 2019 Author Posted July 11, 2019 So turns out when replacing the old plastic hop with the new metal one you need to clip down the new barrel spring rather a lot in order to fit.
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